The shorthand has overtaken the longer version of heating, ventilation and air conditioning and for good reason, that’s a mouthful.
Check these things before calling an HVAC technician to avoid looking foolish and figure out just which kind of furnace filter is the best.
Wi-Fi isn’t necessarily an acronym but it is an abbreviation of sorts. Technically, it stands for wireless fidelity and the name intended to be a play upon hi-fi or high fidelity. The Wi-Fi Alliance, which holds the Wi-Fi trademark, has referred to Wi-Fi as standing for wireless fidelity in the past.